diff --git a/doc/doc-contrib-guide/source/writing-style/code-conventions.rst b/doc/doc-contrib-guide/source/writing-style/code-conventions.rst
index 770cf86c04..4d470f267d 100644
--- a/doc/doc-contrib-guide/source/writing-style/code-conventions.rst
+++ b/doc/doc-contrib-guide/source/writing-style/code-conventions.rst
@@ -16,12 +16,6 @@ Follow these guidelines:
   The OpenStack CLI supports both ``--option ARGUMENT`` and
   ``--option=ARGUMENT``. In technical publications, use ``--option ARGUMENT``.
 
-* **Use "." to source script files**
-
-  When you have to source a script file, for example, a credentials file to
-  gain access to user-only or admin-only CLI commands, use ``.`` instead of
-  ``source``.
-
 * **Use capital letters with underscores for parameters**
 
   When you write parameters in an example command,